Carpal strikes again - Logitech Marble Trackball

I've also had the problem - it is due to the logitech setpoint driver. you have 2 options;

1. remove setpoint from the startup folder so that it does not automatically start when your computer boots. If it is already running, right click on the logitech symbol down in the system tray next to the time, and select exit. This will close the setpoint driver.

2. open setpoint (start>all programs>logitech>mouse and keyboard>mouse and keyboard settings) under the my mouse tab, select the button for the wheel, under select task choose other, from the list choose middle button

hope this fixes it for you,

Cheers Mike

I've got the Logitech Trackman and have used it for around twelve months. I like it a lot and have found that I don't get the sore wrist I used to get with a standard mouse. The only thing I find annoying is having to clean the ball supports which tend to collect dust and slow down the ball rotation. I found that after about nine months regular use the ball started to become 'sticky' even after supports were cleaned. I went back and got a reund on the first one and am now using the second one. Keep your receipt.

I picked one of these up at the local Goodwill for a buck... It works, except I've come to the same problem.

I realize this thread is a few years old, but did anyone figure out how to zoom with this mouse?

Have you thought about using a 3D mouse?  I absolutely love mine, spreads the mousing load between the left & right hands.